Kr
Krypton
Z = 36 · Noble Gas · 83.8 u
Nuclear Engineering Significance
Noble gas fission product. Kr-85 (t₁/₂ = 10.76 y) accumulates in spent fuel and is released during reprocessing. Krypton does not plate out on surfaces so it collects in the fuel rod plenum, contributing to internal fuel pin pressure.
Basic properties
- Atomic number (Z)
- 36
- Standard atomic mass
- 83.8 u
- Category
- Noble Gas
Isotopes & cross-section data
No nuclide data for this element in the reference database.
The NRDP database focuses on nuclides relevant to reactor physics. For full isotope data, see NNDC NuDat 3.